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Finding the Fourth Proportional to 150,062.40, 207,103.97 and 86,412.60

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Solution

The fourth proportional to 150,062.40, 207,103.97 and 86,412.60 is: 119,259.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,062.40 : 207,103.97 = 86,412.60 : x
  2. Step 2: Convert to fraction form
    150,062.40/207,103.97 = 86,412.60/x
  3. Step 3: Cross multiply
    150,062.40x = 207,103.97 × 86,412.60
  4. Step 4: Simplify right side
    150,062.40x = 17,896,392,734.05
  5. Step 5: Solve for x
    x = 17,896,392,734.05/150,062.40
  6. Step 6: Final answer
    x = 119,259.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.